| 摘要 |
PROBLEM TO BE SOLVED: To provide a high heat-transfer capability catalyst having a metal surface which functions as a heat transfer surface and is converted so as to exhibit a catalytic function, and on which a porous catalyst or carrier layer is thickly formed. SOLUTION: This preparation process comprises subjecting the surface of aluminum used as a substrate material to anodic oxidation to form a substrate having a porous alumina surface, then, immersing the substrate in a solution containing a weak acid (or alkali) and a catalyst material or carrier material, to expand pores in the alumina layer and to obtain a catalyst body having such pores the inside of each of which is filled with the catalyst material or carrier material, wherein by immersing the porous anodically oxidized alumina in the solution containing the weak acid (or alkali) and the catalyst material or carrier material, the inside of each of the pores is filled with the catalyst material or carrier material and then the alumina layer is dissolved, to form a layer consisting of only the catalyst material or carrier material on the aluminum surface, and thereafter, depositing a metal on the resulting carrier layer by an impregnation method or ion-exchange method, to produce the objective catalyst.
|
